1
|
Gao X, Xu L, Zhong T, Song X, Zhang H, Liu X, Jiang Y. The proliferation of antibiotic resistance genes (ARGs) and microbial communities in industrial wastewater treatment plant treating N,N-dimethylformamide (DMF) by AAO process. PLoS One 2024; 19:e0299740. [PMID: 38598457 PMCID: PMC11006197 DOI: 10.1371/journal.pone.0299740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 02/14/2024] [Indexed: 04/12/2024] Open
Abstract
The excessive use of antibiotics has resulted in the contamination of the environment with antibiotic resistance genes (ARGs), posing a significant threat to public health. Wastewater treatment plants (WWTPs) are known to be reservoirs of ARGs and considered to be hotspots for horizontal gene transfer (HGT) between bacterial communities. However, most studies focused on the distribution and dissemination of ARGs in hospital and urban WWTPs, and little is known about their fate in industrial WWTPs. In this study, collected the 15 wastewater samples containing N,N-dimethylformamide (DMF) from five stages of the anaerobic anoxic aerobic (AAO) process in an industrial WWTPs. The findings revealed a stepwise decrease in DMF and chemical oxygen demand (COD) content with the progression of treatment. However, the number and abundances of ARGs increase in the effluents of biological treatments. Furthermore, the residues of DMF and the treatment process altered the structure of the bacterial community. The correlation analysis indicated that the shift in bacterial community structures might be the main driver for the dynamics change of ARGs. Interestingly, observed that the AAO process may acted as a microbial source and increased the total abundance of ARGs instead of attenuating it. Additionally, found that non-pathogenic bacteria had higher ARGs abundance than pathogenic bacteria in effluents. The study provides insights into the microbial community structure and the mechanisms that drive the variation in ARGs abundance in industrial WWTPs.
Collapse
Affiliation(s)
- Xuan Gao
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Longhui Xu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Tao Zhong
- Department of Environmental Science and Engineering, Anhui University of Technology, Ma’anshan, China
- Engineering Research Center of Biofilm Water Purification and Utilization Technology, Ministry of Education, Anhui University of Technology, Ma’anshan, China
| | - Xinxin Song
- Department of Environmental Science and Engineering, Anhui University of Technology, Ma’anshan, China
- Engineering Research Center of Biofilm Water Purification and Utilization Technology, Ministry of Education, Anhui University of Technology, Ma’anshan, China
| | - Hong Zhang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Xiaohui Liu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases and Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, Anhui, China
| | - Yongbin Jiang
- Department of Environmental Science and Engineering, Anhui University of Technology, Ma’anshan, China
- Engineering Research Center of Biofilm Water Purification and Utilization Technology, Ministry of Education, Anhui University of Technology, Ma’anshan, China
| |
Collapse
|
2
|
Park Y, Min J, Kim W, Park W. Kaistella rhinocerotis sp. nov., isolated from the faeces of rhinoceros and reclassification of Chryseobacterium faecale as Kaistella faecalis comb. nov. Int J Syst Evol Microbiol 2024; 74. [PMID: 38602466 DOI: 10.1099/ijsem.0.006338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024] Open
Abstract
Strain Ran72T, a novel Gram-stain-negative, obligately aerobic, non-motile, and rod-shaped bacterium, was isolated from the faeces of the rhinoceros species Ceratotherium simum. The novel bacterial strain grew optimally in Reasoner's 2A medium under the following conditions: 0 % (w/v) NaCl, pH 7.5, and 30 °C. Based on phylogenetic analysis using 16S rRNA gene sequencing, strain Ran72T was found to be most closely related to Chryseobacterium faecale F4T (98.4 %), Kaistella soli DKR-2T (98.0 %), and Kaistella haifensis H38T (97.4 %). A comprehensive genome-level comparison between strain Ran72T with C. faecale F4T, K. soli DKR-2T, and K. haifensis H38T revealed average nucleotide identity, digital DNA-DNA hybridization, and average amino acid identity values of ≤74.9, ≤19.3, and ≤78.7 %, respectively. The major fatty acids were anteiso-C15 : 0 (22.3 %), with MK-6 being the predominant respiratory quinone. The major polar lipids of strain Ran72T were phosphatidylethanolamine, four unidentified aminolipids, and two unidentified lipids. Based on our chemotaxonomic, genotypic, and phenotype characterizations, strain Ran72T was identified as representing a novel species in the genus Kaistella, for which the name Kaistella rhinocerotis sp. nov. is proposed, with the type strain Ran72T (=KACC 23136T=JCM 36038T). Based on the outcomes of our phylogenomic study, Chryseobacterium faecale should be reclassified under the genus Kaistella as Kaistella faecalis comb. nov.
Collapse
Affiliation(s)
- Yerim Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Jihyeon Min
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Wonjae Kim
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Woojun Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
3
|
Hazra M, Watts JEM, Williams JB, Joshi H. An evaluation of conventional and nature-based technologies for controlling antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater treatment plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170433. [PMID: 38286289 DOI: 10.1016/j.scitotenv.2024.170433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 01/10/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
Antibiotic resistance is a globally recognized health concern which leads to longer hospital stays, increased morbidity, increased mortality, and higher medical costs. Understanding how antibiotic resistance persists and exchanges in environmental systems like soil, water, and wastewater are critically important for understanding the emergence of pathogens with new resistance profiles and the subsequent exposure of people who indirectly/directly come in contact with these pathogens. There are concerns about the widespread application of prophylactic antibiotics in the clinical and agriculture sectors, as well as chemicals/detergents used in food and manufacturing industries, especially the quaternary ammonium compounds which have been found responsible for the generation of resistant genes in water and soil. The rates of horizontal gene transfer increase where there is a lack of proper water/wastewater infrastructure, high antibiotic manufacturing industries, or endpoint users - such as hospitals and intensive agriculture. Conventional wastewater treatment technologies are often inefficient in the reduction of ARB/ARGs and provide the perfect combination of conditions for the development of antibiotic resistance. The wastewater discharged from municipal facilities may therefore be enriched with bacterial communities/pathogens and provide a suitable environment (due to the presence of nutrients and other pollutants) to enhance the transfer of antibiotic resistance. However, facilities with tertiary treatment (either traditional/emerging technologies) provide higher rates of reduction. This review provides a synthesis of the current understanding of wastewater treatment and antibiotic resistance, examining the drivers that may accelerate their possible transmission to a different environment, and highlighting the need for tertiary technologies used in treatment plants for the reduction of resistant bacteria/genes.
Collapse
Affiliation(s)
- Moushumi Hazra
- Department of Hydrology, Indian Institute of Technology, Roorkee, Uttarakhand, India; International Water Management Institute, New Delhi, India; Civil and Environmental Engineering, University of Nebraska Lincoln, United States.
| | - Joy E M Watts
- School of Biological Sciences, University of Portsmouth, United Kingdom
| | - John B Williams
- School of Civil Engineering and Surveying, University of Portsmouth, United Kingdom
| | - Himanshu Joshi
- Department of Hydrology, Indian Institute of Technology, Roorkee, Uttarakhand, India
| |
Collapse
|
4
|
Li Y, Li R, Hou J, Sun X, Wang Y, Li L, Yang F, Yao Y, An Y. Mobile genetic elements affect the dissemination of antibiotic resistance genes (ARGs) of clinical importance in the environment. ENVIRONMENTAL RESEARCH 2024; 243:117801. [PMID: 38043895 DOI: 10.1016/j.envres.2023.117801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/24/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
The prevalence of antibiotic resistance genes (ARGs) in the environment is a quintessential One Health issue that threats both human and ecosystem health; however, the source and transmission of ARGs, especially clinically important ARGs (CLIARGs), in the environment have not yet been well studied. In the present study, shotgun metagenomic approaches were used to characterize the microbiome, resistome, and mobilome composition in human feces and six different environment sample types in South China. Overall, the resistome harbored 157 CLIARGs, with specific ARG hotspots (e.g., human feces, wastewater treatment plants, livestock manure and wastewater) excreting significantly higher abundance of CLIARGs compared with the natural environment. A redundancy analysis (RDA) was performed and revealed that the bacterial community compositions and mobile genetic elements (MGEs) explained 55.08% and 34.68% of the variations in ARG abundance, respectively, indicating that both bacterial community and MGEs are key contributors to the maintenance and dissemination of CLIARGs in the environment. The network analysis revealed non-random co-occurrence patterns between 200 bacterial genera and 147 CLIARGs, as well as between 135 MGEs and 123 CLIARGs. In addition to numerous co-shared CLIARGs among different sample types, the source tracking program based on the FEAST probabilistic model was used to estimate the relative contributions of the CLIARGs from potential sources to the natural environment. The source tracking analysis results delineated that mobilome, more than microbiome, contributed CLIARG transmission from those ARG hotspots into natural environment, and the MGEs in WWTPs seem to play the most significant role in the spread of CLIARGs to the natural environment (average contribution 32.9%-46.4%). Overall, this study demonstrated the distribution and dissemination of CLIARGs in the environment, and aimed to better inform strategies to control the spread of CLIARGs into the natural environment.
Collapse
Affiliation(s)
- Ye Li
- School of Environment Science and Engineering, Tianjin University, Tianjin, 300350, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Ruilin Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Jie Hou
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| | - Xuan Sun
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Yajun Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Linyun Li
- Ministry of Social and Ecological Civilization, Party School of Hebei Provincial Committee of C.P.C, China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Yanpo Yao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| | - Yi An
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| |
Collapse
|
5
|
Feng J, Pan M, Zhuang Y, Luo J, Chen Y, Wu Y, Fei J, Zhu Y, Xu Z, Yuan Z, Chen M. Genetic epidemiology and plasmid-mediated transmission of mcr-1 by Escherichia coli ST155 from wastewater of long-term care facilities. Microbiol Spectr 2024; 12:e0370723. [PMID: 38353552 PMCID: PMC10913736 DOI: 10.1128/spectrum.03707-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/02/2024] [Indexed: 03/07/2024] Open
Abstract
Long-term care facilities (LTCFs) for older people play an important and unique role in multidrug-resistant organism transmission. Herein, we investigated the genetic characteristics of mobile colistin resistance gene (mcr-1)-carrying Escherichia coli strains isolated from wastewater of LTCFs in Shanghai. Antimicrobial susceptibility test was carried out by agar dilution methods. Whole-genome sequencing and plasmid sequencing were conducted, and resistance genes and sequence types of colistin in E. coli isolates were analyzed. Core genome multilocus sequence typing (cgMLST) analysis was performed by the Ridom SeqSphere+ software. Phylogenetic tree through the maximum likelihood method was constructed by MEGA X. Out of 306 isolates, only 1 E. coli named ECSJ33 was found, and the plasmid pECSJ33 from ECSJ33 harbored the mcr-1 gene that was located with 59,080 bp belonging to IncI2 type. The plasmid pECSJ33 was capable of conjugation with an efficiency of 2.9 × 10-2. Bioinformatic analysis indicated pECSJ33 shared backbone with the previously reported mcr-1-harboring pHNGDF93 isolated from fish source. Moreover, the cgMLST analysis revealed that ECSJ33 belongs to different lineages from those reported from previous E. coli strains but shared high similarity to NCTC11129 in cluster 11. The phylogenetic tree revealed MCR-1 of ECSJ33 in this study was mostly of animal food origin and that they were closely related. Our study firstly reports detection of genome sequence of a multidrug-resistant mcr-1-harboring E. coli ST155 from wastewater of LTCF source in China. The data may prove that the plasmid pECSJ33 belongs to food origin and help to understand the antimicrobial resistance mechanisms and genomic features of colistin resistance under One Health approach.IMPORTANCEOne Escherichia coli named ECSJ33 was found from wastewater of a long-term care facility (LTCF) and the plasmid pECSJ33 from ECSJ33 harbored the mobile colistin resistance gene (mcr-1) that was located with 59,080 bp belonging to IncI2 type, which was capable of conjugation with an efficiency of 2.9 × 10-2. This paper firstly reports an mcr-1-carrying E. coli strain ST155 isolated from LTCF in China. Comparative genomics analysis indicated pECSJ33 shared backbone with the previously reported mcr-1-harboring pHNGDF93 isolated from fish source. The phylogenetic tree revealed MCR-1 protein of ECSJ33 in this study was mostly of animal food origin and that they were closely related. Therefore, the pECSJ33 could be considered as food-origin transmission mcr-1-harboring plasmid.
Collapse
Affiliation(s)
- Jun Feng
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Miao Pan
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Yuan Zhuang
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Jiayuan Luo
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Yong Chen
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Yitong Wu
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Jiayi Fei
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Yanqi Zhu
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Zhen Xu
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Zhengan Yuan
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| | - Min Chen
- Shanghai Municipal Center for Diseases Control and Prevention, Shanghai, China
| |
Collapse
|
6
|
Zhang Z, Bo L, Wang S, Li C, Zhang X, Xue B, Yang X, He X, Shen Z, Qiu Z, Zhao C, Wang J. Multidrug-resistant plasmid RP4 inhibits the nitrogen removal capacity of ammonia-oxidizing archaea, ammonia-oxidizing bacteria, and comammox in activated sludge. ENVIRONMENTAL RESEARCH 2024; 242:117739. [PMID: 38007076 DOI: 10.1016/j.envres.2023.117739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/09/2023] [Accepted: 11/17/2023] [Indexed: 11/27/2023]
Abstract
In wastewater treatment plants (WWTPs), ammonia oxidation is primarily carried out by three types of ammonia oxidation microorganisms (AOMs): ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), and comammox (CMX). Antibiotic resistance genes (ARGs), which pose an important public health concern, have been identified at every stage of wastewater treatment. However, few studies have focused on the impact of ARGs on ammonia removal performance. Therefore, our study sought to investigate the effect of the representative multidrug-resistant plasmid RP4 on the functional microorganisms involved in ammonia oxidation. Using an inhibitor-based method, we first evaluated the contributions of AOA, AOB, and CMX to ammonia oxidation in activated sludge, which were determined to be 13.7%, 41.1%, and 39.1%, respectively. The inhibitory effects of C2H2, C8H14, and 3,4-dimethylpyrazole phosphate (DMPP) were then validated by qPCR. After adding donor strains to the sludge, fluorescence in situ hybridization (FISH) imaging analysis demonstrated the co-localization of RP4 plasmids and all three AOMs, thus confirming the horizontal gene transfer (HGT) of the RP4 plasmid among these microorganisms. Significant inhibitory effects of the RP4 plasmid on the ammonia nitrogen consumption of AOA, AOB, and CMX were also observed, with inhibition rates of 39.7%, 36.2%, and 49.7%, respectively. Moreover, amoA expression in AOB and CMX was variably inhibited by the RP4 plasmid, whereas AOA amoA expression was not inhibited. These results demonstrate the adverse environmental effects of the RP4 plasmid and provide indirect evidence supporting plasmid-mediated conjugation transfer from bacteria to archaea.
Collapse
Affiliation(s)
- Zhaohui Zhang
- School of Environmental Science and Engineering, Tiangong University, State Key Laboratory of Separation Membranes and Membrane Processes, Binshui West Road 399, Xiqing District, Tianjin, 300387, China.
| | - Lin Bo
- School of Environmental Science and Engineering, Tiangong University, State Key Laboratory of Separation Membranes and Membrane Processes, Binshui West Road 399, Xiqing District, Tianjin, 300387, China; Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Shang Wang
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Chenyu Li
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Xi Zhang
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Bin Xue
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Xiaobo Yang
- Key Laboratory of Risk Assessment and Control for Environment & Food Safety, Tianjin, 300050, China
| | - Xinxin He
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Zhiqiang Shen
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Zhigang Qiu
- Key Laboratory of Risk Assessment and Control for Environment & Food Safety, Tianjin, 300050, China
| | - Chen Zhao
- Department of Hygienic Toxicology and Environmental Hygiene, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Jingfeng Wang
- Key Laboratory of Risk Assessment and Control for Environment & Food Safety, Tianjin, 300050, China.
| |
Collapse
|
7
|
Saidulu D, Agrawal S, Bhatnagar A, Gupta AK. Sulfamethoxazole removal from wastewater via anoxic/oxic moving bed biofilm reactor: Degradation pathways and toxicity assessment. BIORESOURCE TECHNOLOGY 2024; 392:129998. [PMID: 37956948 DOI: 10.1016/j.biortech.2023.129998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
The effects of sulfamethoxazole (SMZ), an antibiotic commonly detected in the water environment, on the performance of a single staged anoxic/oxic moving bed biofilm reactor (A/O MBBR), was investigated. The anoxic zone played a key role in the removal of SMZ with a percentage of contribution accounting for around 85% in the overall removal. Denitrifying heterotrophic microbes present in the anoxic zone showed relatively more resistance to higher SMZ loads. It was found that in extracellular polymeric substances, protein content was increased consistently with the increase in SMZ concentration. Based on the detected biotransformation products, four degradation pathways were proposed and the toxicity was evaluated. Metagenomic analysis revealed that at higher SMZ load the activity of genera, such as Proteobacteria and Actinobacteria was significantly affected. In summary, proper design and operation of staged A/O MBBR can offer a resilient and robust treatment towards SMZ removal from wastewater.
Collapse
Affiliation(s)
- Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Shivangi Agrawal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, Mikkeli FI-50130, Finland
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| |
Collapse
|
8
|
Mortezaei Y, Williams MR, Demirer GN. The fate of antibiotic resistance genes during anaerobic digestion of sewage sludge with ultrasonic pretreatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:5513-5525. [PMID: 38127236 DOI: 10.1007/s11356-023-31558-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
This study investigated the effect of ultrasonic (US) pretreatment at three different contact times (30, 45, and 60 min) with a power of 240 W and frequency of 40 kHz on the fate of antibiotic resistance genes (ARGs), mobile genetic elements (MGEs), and enteric pathogens during anaerobic digestion (AD) of sludge. By using real time-qPCR, three MGEs (int1, int2, and tnpA) and seven ARGs (sul1, sul2, tetW, tetA, tetO, ermF, and aac(6')-lb) were quantified that have serious human health impacts and represent the most widely used antibiotics (tetracycline, sulfonamide, macrolide, and aminoglycoside). Results indicated that US pretreatment under different contact times improved the removal of ARGs and MGEs. Compared to 30 and 45 min of US pretreatment, 60 min of US pretreatment resulted in a higher reduction of ARGs with total ARG reduction of 41.70 ± 1.13%. Furthermore, the relative abundance of ARGs and MGEs after US pretreatment was reduced more effectively in anaerobic reactors than in a control AD without US pretreatment. The total ARGs and MGEs removal efficiency of control AD was 44.07 ± 0.72% and 63.69 ± 1.43%, and if US pretreatment at different times were applied, the total ARGs and MGEs removal efficiency of the whole pretreatment AD process improved to 59.71 ± 2.76-68.54 ± 1.58% and 69.82 ± 2.15-76.84 ± 0.22%. The highest removal of total ARGs (68.54 ± 1.58%) and MGEs (76.84 ± 0.22%) was achieved after AD with US pretreatment at 45 min. However, US pretreatment and AD with US pretreatment were not effective in inactivation of enteric pathogens (total coliforms and E. coli), suggesting that posttreatment is needed prior to land application of sludge to reduce the level of enteric pathogens. There was no detection of the studied ARGs and MGEs in the enteric pathogens after US pretreatment in subsequent AD. According to this study, long contact times of US pretreatment can mitigate ARGs and MGEs in AD processes, offering valuable insight into improving environmental safety and sustainable waste management. Additionally, the study highlights the need to investigate posttreatment techniques for reducing enteric pathogens in AD effluent, a crucial consideration for agricultural use and environmental protection.
Collapse
Affiliation(s)
- Yasna Mortezaei
- Earth and Ecosystem Science, Central Michigan University, Mount Pleasant, MI, USA
| | - Maggie R Williams
- School of Engineering and Technology, Central Michigan University, Mount Pleasant, MI, USA
- Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI, USA
| | - Goksel N Demirer
- School of Engineering and Technology, Central Michigan University, Mount Pleasant, MI, USA.
- Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI, USA.
| |
Collapse
|
9
|
Xu M, Gao P, Chen HQ, Shen XX, Xu RZ, Cao JS. Metagenomic insight into the prevalence and driving forces of antibiotic resistance genes in the whole process of three full-scale wastewater treatment plants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118369. [PMID: 37356328 DOI: 10.1016/j.jenvman.2023.118369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/17/2023] [Accepted: 06/08/2023] [Indexed: 06/27/2023]
Abstract
The spread of antibiotic resistance genes (ARGs) is an emerging global health concern, and wastewater treatment plants (WWTPs), as an essential carrier for the occurrence and transmission of ARGs, deserves more attention. Based on the Illumina NovaSeq high-throughput sequencing platform, this study conducted a metagenomic analysis of 18 samples from three full-scale WWTPs to explore the fate of ARGs in the whole process (influent, biochemical treatment, advanced treatment, and effluent) of wastewater treatment. Total 70 ARG subtypes were detected, among which multidrug, aminoglycoside, tetracycline, and macrolide ARGs were most abundant. The different treatment processes used for three WWTPs were capable of reducing ARG diversity, but did not significantly reduce ARG abundance. Compared to that by denitrification filters, the membrane bioreactor (MBR) process was advantageous in controlling the prevalence of multidrug ARGs in WWTPs. Linear discriminant analysis Effect Size (LEfSe) suggested g_Nitrospira, g_Curvibacter, and g_Mycobacterium as the key bacteria responsible for differential ARG prevalence among different WWTPs. Meanwhile, adeF, sul1, and mtrA were the persistent antibiotic resistance genes (PARGs) and played dominant roles in the prevalence of ARGs. Proteobacteria and Actinobacteria were the host bacteria of majority ARGs in WWTPs, while Pseudomonas and Nitrospira were the most crucial host bacteria influencing the dissemination of critical ARGs (e.g., adeF). In addition, microbial richness was determined to be the decisive factor affecting the diversity and abundance of ARGs in wastewater treatment processes. Overall, regulating the abundance of microorganisms and key host bacteria by selecting processes with microbial interception, such as MBR process, may be beneficial to control the prevalence of ARGs in WWTPs.
Collapse
Affiliation(s)
- Ming Xu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Peng Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Hao-Qiang Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Xiao-Xiao Shen
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China.
| | - Run-Ze Xu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Jia-Shun Cao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China
| |
Collapse
|
10
|
Zagui GS, Moreira NC, Santos DV, Paschoalato CFPR, Sierra J, Nadal M, Domingo JL, Darini ALC, Andrade LN, Segura-Muñoz SI. Multidrug-resistant Enterobacter spp. in wastewater and surface water: Molecular characterization of β-lactam resistance and metal tolerance genes. ENVIRONMENTAL RESEARCH 2023; 233:116443. [PMID: 37356524 DOI: 10.1016/j.envres.2023.116443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/27/2023]
Abstract
Among the ESKAPE group pathogens, Enterobacter spp. is an opportunistic Gram-negative bacillus, widely dispersed in the environment, that causes infections. In the present study, samples of hospital wastewater, raw and treated urban wastewater, as well as surface receiving water, were collected to assess the occurrence of multidrug-resistant (MDR) Enterobacter spp. A molecular characterization of β-lactam antibiotic resistance and metal tolerance genes was performed. According to identification by MALDI-TOF MS, 14 isolates were obtained: 7 E. bugandensis, 5 E. kobei, and 2 E. cloacae. The isolates showed resistance mainly to β-lactam antibiotics, including those used to treat infections caused by MDR bacteria. Multiple antibiotic resistance index was calculated for all isolates. It allowed verify whether sampling points showed a high risk due to antibiotic resistant Enterobacter spp., as well as to determine if the isolates have been in environments with a frequent antibiotic use. Twelve isolates showed β-lactam antibiotic resistance gene, being the blaKPC widely detected. Regarding metal tolerance, 13 isolates showed at least two genes that encode metal tolerance mechanisms. Overall, metal tolerance mechanisms to silver, copper, mercury, arsenic and tellurium were found. New data on metal tolerance mechanisms dispersion and antibiotic-resistance characterization of the E. bugandensis and E. kobei species were here provided. The occurrence of MDR Enterobacter spp. in analyzed samples draws attention to an urgent need to put control measures into practice. It also evidences waterborne spread of clinically important antibiotic-resistant bacteria recognized as critical priority pathogens.
Collapse
Affiliation(s)
- Guilherme Sgobbi Zagui
- Water Resources Research Group, Postgraduate Program in Environmental Technology, University of Ribeirão Preto, Brazil; Laboratory of Ecotoxicology and Environmental Parasitology, Ribeirão Preto College of Nursing, University of São Paulo, Brazil.
| | - Natália Columbaro Moreira
- Special Laboratory of Bacteriology and Molecular Epidemiology, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Danilo Vitorino Santos
- Chemical Residue Center, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | | | - Jordi Sierra
- Faculty of Pharmacy, Universitat de Barcelona, Joan XXIII s/n Avenue, 08028, Barcelona, Catalonia, Spain; Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
| | - Martí Nadal
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
| | - José L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
| | - Ana Lúcia Costa Darini
- Special Laboratory of Bacteriology and Molecular Epidemiology, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Leonardo Neves Andrade
- Research Laboratory in Bacterial Resistance and Virulence, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil
| | - Susana Inés Segura-Muñoz
- Laboratory of Ecotoxicology and Environmental Parasitology, Ribeirão Preto College of Nursing, University of São Paulo, Brazil.
| |
Collapse
|
11
|
Díaz-Palafox G, Tamayo-Ordoñez YDJ, Bello-López JM, Ayil-Gutiérrez BA, RodrÍguez-Garza MM, Antonio Rodríguez-de la Garza J, Sosa-Santillán GDJ, Acosta-Cruz E, Ruiz-Marín A, Córdova-Quiroz AV, Pérez-Reda LJ, Tamayo-Ordoñez FA, Tamayo-Ordoñez MC. Regulation Transcriptional of Antibiotic Resistance Genes (ARGs) in Bacteria Isolated from WWTP. Curr Microbiol 2023; 80:338. [PMID: 37672120 PMCID: PMC10482803 DOI: 10.1007/s00284-023-03449-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/15/2023] [Indexed: 09/07/2023]
Abstract
The incidence of antibiotics and transcriptional regulation of ARGs in isolated bacteria from wastewater needs to be explored. By HPLC, in samples of untreated wastewater, ampicillin (49.74 ± 5.70 µg/mL), chloramphenicol (0.60 ± 0.03 µg/mL), tylosin (72.95 ± 2.03 µg/mL), and oxytetracycline (0.22 ± 0.01 µg/mL) was determined. Through metagenomic analysis identified 58 bacterial species belonging to 9 phyla and at least 14 species have shown resistance to a variety of antibiotics. Twenty-two bacterial isolates were proved to be resistant to fifteen antibiotics of new generation and used in medical research to combat infectious diseases. Fourteen strains were shown to harbor plasmids in size ranges of 2-5 Kb, 6-10 Kb and plasmids with size greater than 10 Kb. By quantitative PCR it was possible to identify genes sul, qnr, cat1, aadA1, and sat-1 gene were shown to be present in gDNA samples from treated and untreated samples of wastewater and by relative expression analysis, differential expression of cat1, ermB, act, and tetA genes was demonstrated in strains that showed identity with Escherichia coli, Bacteroides fragilis, and Salmonella thyphi, and that were stressed with different concentrations of antibiotics. The presence of ARGs in untreated water samples, as well as in bacterial isolates, was indicative that in these habitats there are microorganisms that can resist β-lactams, aminoglycosides, tetracyclines, sulfonamides, and quinolones.
Collapse
Affiliation(s)
- Grethel Díaz-Palafox
- Laboratorio de Ingeniería Genética, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico
| | - Yahaira de Jesús Tamayo-Ordoñez
- Laboratorio de Biotecnología Ambiental del Centro de Biotecnología Genómica del Instituto Politécnico Nacional, CP 88710, Reynosa, TAMPS, México
| | | | - Benjamin Abraham Ayil-Gutiérrez
- CONACYT- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Biotecnologia Vegetal, Blvd. del Maestro, s/n, Esq. Elías Piña, 88710, Reynosa, Mexico
| | - Mónica Margarita RodrÍguez-Garza
- Laboratorio de Biotecnología Ambiental, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico
| | - José Antonio Rodríguez-de la Garza
- Laboratorio de Biotecnología Ambiental, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico
| | - Gerardo de Jesús Sosa-Santillán
- Laboratorio de Biosíntesis Enzimática, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico
| | - Erika Acosta-Cruz
- Laboratorio de Microbiología Molecular, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico
| | - Alejandro Ruiz-Marín
- Facultad de Química, Universidad Autónoma del Carmen, Campus "General José Ortiz Ávila, Calle 56 No. 4, 24180, Carmen, Campeche, Mexico
| | - Atl Victor Córdova-Quiroz
- Facultad de Química, Universidad Autónoma del Carmen, Campus "General José Ortiz Ávila, Calle 56 No. 4, 24180, Carmen, Campeche, Mexico
| | - Luis Jorge Pérez-Reda
- Facultad de Química, Universidad Autónoma del Carmen, Campus "General José Ortiz Ávila, Calle 56 No. 4, 24180, Carmen, Campeche, Mexico
| | - Francisco Alberto Tamayo-Ordoñez
- Facultad de Química, Universidad Autónoma del Carmen, Campus "General José Ortiz Ávila, Calle 56 No. 4, 24180, Carmen, Campeche, Mexico
| | - Maria Concepción Tamayo-Ordoñez
- Laboratorio de Ingeniería Genética, Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Ing J. Cárdenas Valdez s/n, República, 25280, Saltillo, Coah, Mexico.
| |
Collapse
|
12
|
Qi H, Shi X, Liu Z, Yan Z, Sun Z. An anode and cathode cooperative oxidation system constructed with Ee-GF as anode and CuFe 2O 4/Cu 2O/Cu@EGF as cathode for the efficient removal of sulfamethoxazole. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162645. [PMID: 36889393 DOI: 10.1016/j.scitotenv.2023.162645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/20/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to further improve the degradation efficiency of pollutants by electrochemical oxidation system and reduce the consumption of electric energy. A simple method of electrochemical exfoliation was used to modify graphite felt (GF) to prepare an anode material (Ee-GF) with high degradation performance. An anode and cathode cooperative oxidation system was constructed with Ee-GF as the anode and CuFe2O4/Cu2O/Cu@EGF as the cathode to efficiently degrade sulfamethoxazole (SMX). Complete degradation of SMX was achieved within 30 min. Compared with anodic oxidation system alone, the degradation time of SMX was reduced by half and the energy consumption was reduced by 66.8 %. The system displayed excellent performance for the degradation of different concentrations (10-50 mg L-1) of SMX, different pollutants, and under different water quality conditions. In addition, the system still maintained 91.7 % removal rate of SMX after ten consecutive runs. At least 12 degradation products and seven possible degradation routes of SMX were generated in the degradation process by the combined system. The eco-toxicity of degradation products of SMX was reduced after the proposed treatment. This study provided a theoretical basis for the safe, efficient, and low energy consumption removal of antibiotic wastewater.
Collapse
Affiliation(s)
- Haiqiang Qi
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Xuelin Shi
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Zhibin Liu
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Zihao Yan
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China
| | - Zhirong Sun
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China.
| |
Collapse
|
13
|
Gómez-Regalado MDC, Espín-Moreno L, Martín-Pozo L, Zafra-Gómez A. Analytical method for the determination of usually prescribed antibiotics in human nails using UHPLC-MS/MS. Comparison of the efficiency of two extraction techniques. Talanta 2023; 262:124687. [PMID: 37229817 DOI: 10.1016/j.talanta.2023.124687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/03/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023]
Abstract
Antibiotics are a group of drugs used for the treatment of bacterial diseases. They are used in both human and veterinary medicine and, although they are not permitted, they are sometimes used as growth promoters. The present research compares two extraction techniques: ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) in order to evaluate their efficiency in the determination of 17 usually prescribed antibiotics in human nails. The extraction parameters were optimized using multivariate techniques. Once both techniques were compared, MAE was selected as optimal due to its greater experimental practicability together with the better extraction efficiencies it provides. Target analytes were detected and quantified by ultra-high performance liquid chromatography with tandem mass spectrometry detection (UHPLC-MS/MS). The run time was 20 min. The methodology was then successfully validated, obtaining acceptable analytical parameters according to the guide used. Limits of detection were between 0.3 and 3 ng g-1 and limits of quantification were in the range from 1.0 to 4.0 ng g-1. Recovery percentages ranged from 87.5% to 114.2%, and precision (in terms of standard deviation) was less than 15% in all cases. Finally, the optimized method was applied to nails taken from 10 volunteers and the results revealed the presence of one or more antibiotics in all the samples examined. The most commonly found antibiotic was sulfamethoxazole, followed by danofloxacin and levofloxacin. The results demonstrated, on the one hand, the presence of these compounds in the human body and, on the other hand, the suitability of nails as a non-invasive biomarker of exposure.
Collapse
Affiliation(s)
| | - Lydia Espín-Moreno
- Department of Analytical Chemistry, University of Granada, E-18071 Granada, Spain
| | - Laura Martín-Pozo
- Department of Analytical Chemistry, Escuela Politécnica Superior, University of Seville, C/ Virgen de África 7, E-41011 Seville, Spain
| | - Alberto Zafra-Gómez
- Department of Analytical Chemistry, University of Granada, E-18071 Granada, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, E-18016 Granada, Spain; Institute of Nutrition and Food Technology (INYTA)"José Mataix Verdú", Biomedical Research Centre (CIBM), University of Granada, E-18100 Granada, Spain.
| |
Collapse
|
14
|
Zhang M, Li K, Wang P, Gu W, Huang H, Xie B. Comparative insight into the effects of different carbon source supplement on antibiotic resistance genes during whole-run and short-cut nitrification-denitrification processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27412-4. [PMID: 37249772 DOI: 10.1007/s11356-023-27412-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/30/2023] [Indexed: 05/31/2023]
Abstract
Mature landfill leachate is known for nitrogen-removal challenging and meantime was considered as an important sink of antibiotic resistance genes (ARGs). The added external carbon sources, enabling the short-cut nitrification and denitrification, may facilitate the proliferation of bacteria that possibly carry ARGs. However, this speculation has yet to be studied. Here, we explored the effects of glucose, sodium acetate, and methanol supplements on ARGs during whole-run and short-cut treatment processes. The results showed that sodium acetate supplement during short-cut process efficiently reduced the abundances of total ARGs (0.84-1.99 copies/16S rRNA) and integrons (0.59-1.20 copies/16S rRNA), which were highly enhanced by methanol addition during whole-run treatment process (total ARGs: 3.60-11.01 copies/16S rRNA, integrons: 1.20-4.69 copies/16S rRNA). Indirect gradient analysis showed that the variation of ARGs was not correlated with the supplement of different external carbon source. Correlation analysis indicated that dominant intl1 (55.99 ± 17.61% of integrons) showed positively significant correlations with all detected ARGs expect for sul2 and ermB (p < 0.05), suggesting the significant role on ARGs dissemination. Redundancy analysis illustrated that the potential hosts of intl1, intl2, sul1, tetQ, tetM, mefA, and mexF were dominant Bacteroidetes and Actinobacteria. Interestingly, the numbers and significant extent of correlations under the supplement of sodium acetate during short-cut denitrification process were obviously declined, and it was in accordance with ARGs reduced by sodium acetate supplement, suggesting sodium acetate displayed the efficient ARGs reduction during short-cut process. In summary, this study provides a comparative understanding of the effects on ARGs by different carbon source supplements during nitrification-denitrification processes of leachate; sodium acetate is the optimal carbon source.
Collapse
Affiliation(s)
- Meilan Zhang
- The State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
- Shanghai Laogang Waste Disposal Co., Shanghai, 201302, People's Republic of China
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Kaiyi Li
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Panliang Wang
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Wenchao Gu
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Huang Huang
- Shanghai Laogang Waste Disposal Co., Shanghai, 201302, People's Republic of China
| | - Bing Xie
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, People's Republic of China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China.
| |
Collapse
|
15
|
Zhang J, Yue Z, Ding C, Zhou Z, Zhang T, Wang X. Metagenomic binning analyses of pig manure composting reveal potential antibiotic-degrading bacteria and their risk of antibiotic resistance genes. BIORESOURCE TECHNOLOGY 2023; 371:128540. [PMID: 36581234 DOI: 10.1016/j.biortech.2022.128540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Antibiotic-degrading bacteria are commonly used to treat antibiotic contamination, but the antibiotic resistance genes (ARGs) they carry are often overlooked. This study used metagenomic assembly and binning analyses to explore potential antibiotic-degrading bacteria and their ARGs during pig manure composting. The result showed that 35 metagenome-assembled genomes (MAGs) mainly containing alkyl-aryl transferase and decarboxylase genes involved in the removal of antibiotics. Multidrug (124), β-lactam (67), macrolide-lincosamide-streptogramin (MLS) (64), and tetracycline (43) were the central ARG types detected in the 35 MAGs. Furthermore, the risk of ARGs was evaluated using the arg_ranker framework, and 19 MAGs were found to contain intermediate-high-risk ARGs with human-associated-enrichment, gene transferability, and host pathogenicity. Bin 34 of the genus of Geofilum had the highest ARG risk. Bin 6, Bin 11 and Bin 14 of the genus of Limnochorda, Chelatococcus and Niabella, had a lower ARG risk and were considered as potential antibiotic-degrading bacteria.
Collapse
Affiliation(s)
- Jing Zhang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhengfu Yue
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Key Laboratory of Low-carbon Green Agriculture in Tropical region of China, Ministry of Agriculture and Rural Affairs, Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China
| | - Changfeng Ding
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Ecological Experimental Station of Red Soil, Chinese Academy of Sciences, Yingtan 335211, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhigao Zhou
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Taolin Zhang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingxiang Wang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Ecological Experimental Station of Red Soil, Chinese Academy of Sciences, Yingtan 335211, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
16
|
Ríos-Castro R, Cabo A, Teira E, Cameselle C, Gouveia S, Payo P, Novoa B, Figueras A. High-throughput sequencing as a tool for monitoring prokaryote communities in a wastewater treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160531. [PMID: 36470389 DOI: 10.1016/j.scitotenv.2022.160531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
In this study, the DNA metabarcoding technique was used to explore the prokaryote diversity and community structure in wastewater collected in spring and winter 2020-2021 as well as the efficiency of the treatment in a wastewater treatment plant (WWTP) in Ría de Vigo (NW Spain). The samplings included raw wastewater from the inlet stream (M1), the discharge water after the disinfection treatment (M3) and mussels used as bioindicators of possible contamination of the marine environment. Significant differences were discovered in the microbiome of each type of sample (M1, M3 and mussels), with 92 %, 45 % and 44 % of exclusive OTUs found in mussel, M3 and M1 samples respectively. Seasonal differences were also detected in wastewater samples, with which abiotic parameters (temperature, pH) could be strongly involved. Bacteria present in raw wastewater (M1) were associated with the human gut microbiome, and therefore, potential pathogens that could be circulating in the population in specific periods were detected (e.g., Arcobacter sp. and Clostridium sp.). A considerable decrease in putative pathogenic organisms from the M1 to M3 wastewater fractions and the scarce presence in mussels (<0.5 % total reads) confirmed the effectiveness of pathogen removal in the wastewater treatment plant. Our results showed the potential of the DNA metabarcoding technique for monitoring studies and confirmed its application in wastewater-based epidemiology (WBE) and environmental contamination studies. Although this technique cannot determine if the infective pathogens are present, it can characterize the microbial communities and the putative pathogens that are circulating through the population (microbiome of M1) and also confirm the efficacy of depuration treatment, which can directly affect the aquaculture sector and even human and veterinary health.
Collapse
Affiliation(s)
- Raquel Ríos-Castro
- Marine Research Institute IIM-CSIC, Spanish National Research Council, Eduardo Cabello 6, 36208 Vigo, Spain.
| | - Adrián Cabo
- University of Vigo, BiotecnIA Group, Department of Chemical Engineering, 36310 Vigo, Spain.
| | - Eva Teira
- University of Vigo, Departamento de Ecología y Biología Animal, Centro de Investigación Marina (CIM), Universidad de Vigo, Facultad de Ciencias do Mar, 36310 Vigo, Spain.
| | - Claudio Cameselle
- University of Vigo, BiotecnIA Group, Department of Chemical Engineering, 36310 Vigo, Spain
| | - Susana Gouveia
- University of Vigo, BiotecnIA Group, Department of Chemical Engineering, 36310 Vigo, Spain
| | - Pedro Payo
- GESECO Aguas S.A., Teixugueiras 13, 36212 Vigo, Spain.
| | - Beatriz Novoa
- Marine Research Institute IIM-CSIC, Spanish National Research Council, Eduardo Cabello 6, 36208 Vigo, Spain.
| | - Antonio Figueras
- Marine Research Institute IIM-CSIC, Spanish National Research Council, Eduardo Cabello 6, 36208 Vigo, Spain.
| |
Collapse
|
17
|
Blue Light Sensing BlsA-Mediated Modulation of Meropenem Resistance and Biofilm Formation in Acinetobacter baumannii. mSystems 2023; 8:e0089722. [PMID: 36622157 PMCID: PMC9948694 DOI: 10.1128/msystems.00897-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The presence or absence of BlsA, a protein with a blue light-sensing flavin domain in the genomes of Acinetobacter species has aroused curiosity about its roles in the regulation of bacterial lifestyle under light. Genomic and transcriptomic analyses revealed the loss of BlsA in several multidrug-resistant (MDR) A. baumannii strains as well as the light-mediated induction of blsA, along with a possible BlsA-interacting partner BipA. Their direct in vivo interactions were verified using a bacterial two-hybrid system. The results demonstrated that the C-terminal region of BipA could bind to the C-terminal residues of BlsA under blue light at 23°C but not at 37°C. Genetic manipulations of blsA and bipA revealed that the coexistence of BlsA and BipA was required to induce the light-dependent expression of ompA in A. baumannii ATCC 17978 at 23°C. The same phenomenon occurred in the BlsA-deficient MDR strain in our functional complementation assay; however, the underlying molecular mechanism remains poorly understood. BlsA-modulated amounts of OmpA, the most abundant porin, in the outer membrane affected the membrane integrity and permeability of small molecules. Dark conditions or the deletion of ompA made the membrane more permeable to lipophilic ethidium bromide (EtBr) but not to meropenem. Interestingly, light illumination and low temperature conditions made the cells more sensitive to meropenem; however, this bactericidal effect was not noted in the blsA mutant or in the BlsA-deficient MDR strains. Light-mediated cell death and the reduction of biofilm formation at 23°C were abolished in the blsA mutant strain, suggesting multifaceted roles of BlsA in A. baumannii strains. IMPORTANCE Little is known about the functional roles of BlsA and its interacting partners in Acinetobacter species. Intriguingly, no BlsA homolog was found in several clinical isolates, suggesting that BlsA was not required inside the host because of the lack of blue light and the warm temperature conditions. As many chromophore-harboring proteins interact with various partners to control light-dependent cellular behaviors, the maintenance of blsA in the genomes of many Acinetobacter species during their evolution may be beneficial when fluctuations occur in two important environmental factors: light and temperature. Our study is the first to report the novel protein partner of BlsA, namely, BipA, and its contribution to multiple phenotypic changes, including meropenem resistance and biofilm formation. Rapid physiological acclimation to changing light or temperature conditions may be possible in the presence of the light-sensing BlsA protein, which may have more interacting partners than expected.
Collapse
|
18
|
Zhang J, Li G, Yuan X, Li P, Yu Y, Yang W, Zhao S. Reduction of Ultrafiltration Membrane Fouling by the Pretreatment Removal of Emerging Pollutants: A Review. MEMBRANES 2023; 13:membranes13010077. [PMID: 36676884 PMCID: PMC9862110 DOI: 10.3390/membranes13010077] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/24/2022] [Accepted: 01/06/2023] [Indexed: 05/28/2023]
Abstract
Ultrafiltration (UF) processes exhibit high removal efficiencies for suspended solids and organic macromolecules, while UF membrane fouling is the biggest obstacle affecting the wide application of UF technology. To solve this problem, various pretreatment measures, including coagulation, adsorption, and advanced oxidation, for application prior to UF processes have been proposed and applied in actual water treatment processes. Previously, researchers mainly focused on the contribution of natural macromolecular pollutants to UF membrane fouling, while the mechanisms of the influence of emerging pollutants (EPs) in UF processes (such as antibiotics, microplastics, antibiotic resistance genes, etc.) on membrane fouling still need to be determined. This review introduces the removal efficiency and separation mechanism for EPs for pretreatments combined with UF membrane separation technology and evaluates the degree of membrane fouling based on the UF membrane's materials/pores and the structural characteristics of the cake layer. This paper shows that the current membrane separation process should be actively developed with the aim of overcoming specific problems in order to meet the technical requirements for the efficient separation of EPs.
Collapse
Affiliation(s)
- Jianguo Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Gaotian Li
- School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Xingcheng Yuan
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Panpan Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yongfa Yu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Weihua Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Shuang Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| |
Collapse
|
19
|
Zagui GS, Almeida OGGD, Moreira NC, Abichabki N, Machado GP, De Martinis ECP, Darini ALC, Andrade LN, Segura-Muñoz SI. A set of antibiotic-resistance mechanisms and virulence factors in GES-16-producing Klebsiella quasipneumoniae subsp. similipneumoniae from hospital wastewater revealed by whole-genome sequencing. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120645. [PMID: 36375580 DOI: 10.1016/j.envpol.2022.120645] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/20/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Klebsiella quasipneumoniae subsp. similipneumoniae has emerged as a human pathogen and sporadic isolates from non-clinical sources were reported. Here, we described the phenotypic- and genomic-characteristics of a multidrug-resistant (MDR) and potentially hypervirulent (MDR-hv) Klebsiella quasipneumoniae subsp. similipneumoniae (KqA1) isolated from hospital wastewater. The antibiotic susceptibility profile of KqA1 was investigated using disk-diffusion method, broth microdilution method, and agar dilution method, and the genetic characteristics of antimicrobial resistance, mobile genetics elements, and virulence were evaluated by genomic DNA sequencing on the Illumina® NovaSeq6000 platform as well as by bioinformatic analysis. Resistome analyses revealed the presence of genes related to resistance to β-lactams, aminoglycosides, quinolones, tetracyclines, sulfonamides, trimethoprim, chloramphenicol, macrolides, and fosfomycin. New genetic contexts to blaGES-16 (carbapenemase gene) and to fosA (fosfomycin resistance gene) were described. A set of mechanisms that can contribute to antibiotic resistance, commonly detected in Klebsiella spp., was also found including chromosomal mutations, efflux systems, proteins, and regulators. Moreover, KqA1 presented genes related to tolerance to metals (arsenic, copper, nickel, cobalt, magnesium, cadmium, zinc, tellurium, selenium) and to biocides (quaternary-ammonium compounds). The isolate was classified as potentially hypervirulent due to a wide range of virulence factors found associated to regulation, motility, biofilm, effector delivery systems, immune modulation, nutritional/metabolic factors, adherence, invasion, and competitive advantage. The occurrence of MDR-hv KqA1 in hospital wastewater points out how this environment matrix plays a crucial role in the maintenance and selection of critical bacterial pathogens. Regarding One Health perspective, it is evident the need for multidisciplinary implementation of control measures for antibiotic-resistant bacteria, not only in hospital settings but also in a general environmental context to mitigate the dissemination of MDR and hv bacteria.
Collapse
Affiliation(s)
| | | | | | - Nathália Abichabki
- School of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Brazil
| | | | | | | | | | | |
Collapse
|
20
|
Min J, Kim P, Yun S, Hong M, Park W. Zoo animal manure as an overlooked reservoir of antibiotic resistance genes and multidrug-resistant bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:710-726. [PMID: 35906519 DOI: 10.1007/s11356-022-22279-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Animal fecal samples collected in the summer and winter from 11 herbivorous animals, including sable antelope (SA), long-tailed goral (LTG), and common eland (CE), at a public zoo were examined for the presence of antibiotic resistance genes (ARGs). Seven antibiotics, including meropenem and azithromycin, were used to isolate culturable multidrug-resistant (MDR) strains. The manures from three animals (SA, LTG, and CE) contained 104-fold higher culturable MDR bacteria, including Chryseobacterium, Sphingobacterium, and Stenotrophomonas species, while fewer MDR bacteria were isolated from manure from water buffalo, rhinoceros, and elephant against all tested antibiotics. Three MDR bacteria-rich samples along with composite samples were further analyzed using nanopore-based technology. ARGs including lnu(C), tet(Q), and mef(A) were common and often associated with transposons in all tested samples, suggesting that transposons carrying ARGs may play an important role for the dissemination of ARGs in our tested animals. Although several copies of ARGs such as aph(3')-IIc, blaL1, blaIND-3, and tet(42) were found in the sequenced genomes of the nine MDR bacteria, the numbers and types of ARGs appeared to be less than expected in zoo animal manure, suggesting that MDR bacteria in the gut of the tested animals had intrinsic resistant phenotypes in the absence of ARGs.
Collapse
Affiliation(s)
- Jihyeon Min
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Pureun Kim
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sohyeon Yun
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Minyoung Hong
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Woojun Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
| |
Collapse
|
21
|
Li Q, Tian L, Cai X, Wang Y, Mao Y. Plastisphere showing unique microbiome and resistome different from activated sludge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158330. [PMID: 36041613 DOI: 10.1016/j.scitotenv.2022.158330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/04/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Plastisphere (the biofilm on microplastics) in wastewater treatment plants (WWTPs) may enrich pathogens and antibiotic resistance genes (ARGs) which can cause risks to the ecological environment by discharging into receiving waters. However, the microbiome and resistome of plastisphere in activated sludge (AS) systems remain inconclusive. Here, metagenome was applied to investigate the microbial composition, functions and ARGs of the Polyvinyl chloride (PVC) plastisphere in lab-scale reactors, and revealed the effects of tetracycline (TC) and/or Cu(II) pressures on them. The results indicated that the plastisphere provided a new niche for microbiota showing unique functions distinct from the AS. Particularly, various potentially pathogenic bacteria tended to enrich in PVC plastisphere. Moreover, various ARGs were detected in plastisphere and AS, but the plastisphere had more potential ARGs hosts and a stronger correlation with ARGs. The ARGs abundances increased after exposure to TC and/or Cu(II) pressures, especially tetracycline resistance genes (TRGs), and the results further showed that TRGs with different resistance mechanisms were separately enriched in plastisphere and AS. Furthermore, the exogenous pressures from Cu(II) or/and TC also enhanced the association of potential pathogens with TRGs in PVC plastisphere. The findings contribute to assessing the potential risks of spreading pathogens and ARGs through microplastics in WWTPs.
Collapse
Affiliation(s)
- Qihao Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Li Tian
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Xunchao Cai
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China; Department of Gastroenterology and Hepatology, Shenzhen University General Hospital, Shenzhen, Guangdong 518071, China
| | - Yicheng Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China
| | - Yanping Mao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518071, China.
| |
Collapse
|
22
|
Nicula NO, Lungulescu EM, Rimbu GA, Culcea A, Csutak O. Nutrient and organic pollutants removal in synthetic wastewater by Pseudomonas aeruginosa and Chryseobacterium sp./biofilter systems. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:881. [PMID: 36229564 DOI: 10.1007/s10661-022-10589-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/11/2022] [Indexed: 06/16/2023]
Abstract
Nutrient and organic pollution raise serious problems for aquatic ecosystems through the accumulation of organic carbon, the reduction of light penetration, and the loss of submerged aquatic vegetation. The over-enrichment of water with nitrogen and phosphorus leads to an imbalance in nutrient ratios, creating favorable conditions for toxic algal blooms, formation of oxygen-depleted water, etc. Thus, developing new technological solutions to reduce their amount is imperative. The present study investigates the capacity of Pseudomonas aeruginosa and Chryseobacterium sp. bacterial strains to form biofilm on solid support (biofilter), both individually and in tandem, using various analytical techniques. Also, the biofilm/biofilter systems' efficiency in removing nutrients such as nitrate, nitrite, ammonium, and phosphate ions from municipal wastewaters is assessed. The results showed a reduction of nutrient pollution of up to 91%, 98%, 55%, and 71% for nitrite, nitrate, ammonium, and phosphate ions. A reduction of about 78% of COD was also observed. The results were obtained in the absence of an additional aeration process, thus having a great potential for reducing total costs of wastewater treatment and developing ecological systems for wastewater management.
Collapse
Affiliation(s)
- Nicoleta-Oana Nicula
- National Institute for R&D in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, Bucharest, 030138, Romania
- Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, Bucharest, Romania
| | - Eduard-Marius Lungulescu
- National Institute for R&D in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, Bucharest, 030138, Romania.
| | - Gimi A Rimbu
- National Institute for R&D in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, Bucharest, 030138, Romania
| | - Andreea Culcea
- National Institute for R&D in Electrical Engineering ICPE-CA, 313 Splaiul Unirii, Bucharest, 030138, Romania
| | - Ortansa Csutak
- Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor, Bucharest, Romania.
| |
Collapse
|
23
|
Azuma T, Uchiyama T, Zhang D, Usui M, Hayashi T. Distribution and characteristics of carbapenem-resistant and extended-spectrum β-lactamase (ESBL) producing Escherichia coli in hospital effluents, sewage treatment plants, and river water in an urban area of Japan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 839:156232. [PMID: 35623520 DOI: 10.1016/j.scitotenv.2022.156232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/21/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
Occurrence of profiles of the carbapenem-resistant Escherichia coli (CRE-E) and extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (ESBL-E) in an urban river in a sub-catchment of the Yodo River Basin, one of the representative water systems of Japan was investigated. We conducted seasonal and year-round surveys for the antimicrobial-resistant bacteria (AMRB) and antimicrobial-resistance genes (AMRGs) in hospital effluents, sewage treatment plant (STP) wastewater, and river water; subsequently, contributions to wastewater discharge into the rivers were estimated by analyses based on the mass flux. Furthermore, the characteristics of AMRB in the water samples were evaluated on the basis of antimicrobial susceptibility tests. CRE-E and ESBL-E were detected in all water samples with mean values 11 and 1900 CFU/mL in the hospital effluent, 58 and 4550 CFU/mL in the STP influent, not detected to 1 CFU/mL in the STP effluent, and 1 and 1 CFU/mL in the STP discharge into the river, respectively. Contributions of the pollution load derived from the STP effluent discharged into the river water were 1 to 21%. The resistome profiles for blaIMP, blaTEM, and blaCTX-M genes in each water sample showed that AMRGs were not completely removed in the wastewater treatment process in the STP, and the relative abundances of blaIMP, blaTEM, and blaCTX-M genes were almost similar (P<0.05). Susceptibility testing of antimicrobial-resistant E. coli isolates showed that CRE-E and ESBL-E detected in wastewaters and river water were linked to the prevalence of AMRB in clinical settings. These results suggest the importance of conducting environmental risk management of AMRB and AMRGs in the river environment. To our knowledge, this is the first detailed study that links the medical environment to CRE-E and ESBL-E for evaluating the AMRB and AMRGs in hospital effluents, STP wastewater, and river water at the basin scale on the basis of mass flux as well as the contributions of CRE-E and ESBL-E to wastewater discharge into the river.
Collapse
Affiliation(s)
- Takashi Azuma
- Department of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan.
| | - Tomoharu Uchiyama
- Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunkyodai, Ebetsu, Hokkaido 069-8501, Japan
| | - Dongsheng Zhang
- Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunkyodai, Ebetsu, Hokkaido 069-8501, Japan
| | - Masaru Usui
- Food Microbiology and Food Safety, Department of Health and Environmental Sciences, School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunkyodai, Ebetsu, Hokkaido 069-8501, Japan
| | - Tetsuya Hayashi
- Department of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan; Faculty of Human Development, Department of Food and Nutrition Management Studies, Soai University, 4-4-1 Nankonaka, Osaka Suminoeku, Osaka 559-0033, Japan
| |
Collapse
|
24
|
Chakraborty N, Jha D, Roy I, Kumar P, Gaurav SS, Marimuthu K, Ng OT, Lakshminarayanan R, Verma NK, Gautam HK. Nanobiotics against antimicrobial resistance: harnessing the power of nanoscale materials and technologies. J Nanobiotechnology 2022; 20:375. [PMID: 35953826 PMCID: PMC9371964 DOI: 10.1186/s12951-022-01573-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Given the spasmodic increment in antimicrobial resistance (AMR), world is on the verge of “post-antibiotic era”. It is anticipated that current SARS-CoV2 pandemic would worsen the situation in future, mainly due to the lack of new/next generation of antimicrobials. In this context, nanoscale materials with antimicrobial potential have a great promise to treat deadly pathogens. These functional materials are uniquely positioned to effectively interfere with the bacterial systems and augment biofilm penetration. Most importantly, the core substance, surface chemistry, shape, and size of nanomaterials define their efficacy while avoiding the development of AMR. Here, we review the mechanisms of AMR and emerging applications of nanoscale functional materials as an excellent substitute for conventional antibiotics. We discuss the potential, promises, challenges and prospects of nanobiotics to combat AMR.
Collapse
Affiliation(s)
- Nayanika Chakraborty
- Department of Chemistry, University of Delhi, New Delhi, 110007, India.,Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India
| | - Diksha Jha
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pradeep Kumar
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, 110007, New Delhi, India
| | - Shailendra Singh Gaurav
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Kalisvar Marimuthu
- National Centre for Infectious Diseases (NCID), Singapore, 308442, Singapore.,Tan Tock Seng Hospital (TTSH), 308433, Singapore, Singapore
| | - Oon-Tek Ng
- National Centre for Infectious Diseases (NCID), Singapore, 308442, Singapore.,Tan Tock Seng Hospital (TTSH), 308433, Singapore, Singapore
| | - Rajamani Lakshminarayanan
- Ocular Infections and Anti-Microbials Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Singapore, 169856, Singapore. .,Department of Pharmacy, National University of Singapore, Singapore, 117543, Singapore. .,Academic Clinical Program in Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, 169857, Singapore.
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore, 308232, Singapore. .,National Skin Centre, Singapore, 308205, Singapore.
| | - Hemant K Gautam
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi, 110025, India.
| |
Collapse
|